Python FastAPI Developer Needed for SMM Provider API Integration

Python, PostgreSQL, Backend Development, API Integration, FastAPI, REST API · We already have a working SMM panel built with Python FastAPI and PostgreSQL.

We need an experienced backend developer to build or integrate a separate delivery/provider API module into our existing system.

Required functionality:

Create delivery orders using target, service type and quantity Return a unique order ID Order status: pending, processing, completed, partial, failed, cancelled Return delivered and remaining quantity Inventory/capacity endpoint for Premium and Standard services API key or Bearer token authentication Idempotency protection to prevent duplicate orders Proper JSON error responses Optional cancel endpoint Webhook support is preferred API documentation and test access must be provided

Our existing frontend, admin panel, users, balances, orders, PostgreSQL database and FastAPI backend are already built. We do NOT need the whole website rebuilt.

Deliverables:

Working API/module API documentation Test credentials/access Example requests/responses Deployment instructions

Please apply only if you have strong experience with Python, FastAPI, REST APIs, PostgreSQL, asynchronous workers/queues and third-party API integrations.